An old man lived by mountain that blocked his view, and so he determined to move it stone by stone. To those who laughed at him he said: "My sons and their sons will carry stones. The mountain will be moved." This story offered a metaphor for change in China for a participant in tonight's film, which opens a new season of documentaries highlighting the work of independent film-makers. It is the first project as a film producer by actress Trudie Styler and it traces events leading up to the Tiananmen Square massacre in 1989 and its aftermath, seen through the eyes of the student leaders involved. The director is Michael Apted , whose work includes feature films such as Coal Miner's Daughter and Gorky Park.